Vise or clamp.



HROLD SOUTHON. OP'UTNEY, LONDOBL'ENGLANJD. j

visi: on. orarie.

Specification of Letters Yatent.

Patented web.. 2d, Wild.

Application filed January 25, 1917. Serial No. 144,489.

To all whom t may concern:

Be it known that ll, HAROLD Son'rnoN, a subject of His Majesty the Kingof England, and resident of Putney, in the county of London, Kingdom ofEngland, have invented certain new and useful llmprovements in Vises orClamps, of which the following is a specification. l

rl`his invention relates'to improvements' in and relating to theconstruction of vises or clamps and it consists in a vise or clamp witha mounting so constructed as to allow the work held therein to rotate orpartly rotate, about an axis passing through, or near to, the uppersurface of the work. 'lhe object of this construction is to permit thework, to the surface of which a le is being applied, to have a freedomof angular movej ment in a plane normalto the face of the file so thatif the file be not moved truly in the filing plane the work willnevertheless automatically adjust itself to the file surface and will becut truly thereby.

According to the invention the vise or ,clamp is constructed with one ormore movable jaws carried in a suitable manner by a frame comprising anaxle or alined axles, the axis of which lies in a plane passing throughor near to the upper edgesof the jaws, preferably slightly above theplane of such edges so that the upper surface of the work held in thejaws may be fixed in or near to the plane through which the axis passes.The mounting is preferably so madethat the vise or clamp is supportedthereon by means of its axle or axles on a suitable half bearing orbearings, but is capable of i being lifted ed' or removed from thebearlid ings or bearing to be used as a clamp..

ln the example of construction of my in.-

venton illustrated in the annexed drawings,

the vise comprises a stationary jaw and a movable jaw the direction ofmovement being parallel to the .rocking axis. 'lhis method ofconstruction is simple and permits of a ready adjustment of the work sothat the center of its face may be placed centrally as regards the axisor more or less rearwardly or forwardly as the worker may desire, therearward placing of the work causing thefile to remove more substancefrom the forward part of the surface and the forward placing of the workcausingtlie dla to remove more aubsmnce from the rear ward part of thesurface when either of these is desired. ln these drawings Figure l is afront elevation of this form of construction;

Fig. 2 is a section on line 2-2 of Figs. 1 and 3; and

Fig. 3 is a plan.

The frame a of the Lvise is of crank-like or U shape form, with twoprojecting rods or pins b and c and having a common axis. At or near oneend of the frame a is formed a fixed jaw al with suitablefacing plate e.

The portion f of the frame forms a bed for guiding the base df themovable jaw g having a facing plate'h. rlhe rod c and boss of the framea adjacent to and carrying the rod c is hollow and screw-threaded toengage the screw i. At the outer end of the screw t' is a knurled headj; and at the end nearer the movable jaw g' a capstan head c is screwedupon the screw z' and secured by a key l. The screw `i terminates atthis end in a cylindrical pin m engaging a corresponding socket in theback of the jaw g. A groove n may be cut in the pin m with which engagesthe end of a grub screw o to cause the jaw g to be withdrawn when thescrew z is screwed outward to separate the jaws.

lf it be desired that the jaw g be movable outward by hand the grubscrew maybe removed or omitted. With this construction the screw i maybe run up by hand and nal pressure given byA turning the capstan head bymeans of a tommy bar placed in one of the holes p. rlhe upper edges ofthe fixed and sliding jaws of the vise are slightly below the axial lineof the projecting rods b. c;y the faces of the jaws being at rightangles to such axial line.

may rotate, or partly rotate thereon.

llt will be obvious that the construction may be varied in many wayswithout departing from the spirit of my invention, the exampleillustrated is onl one form of construction which l have elected forillustra tion as being of simple and cheap character. The jaws may alsobe made to have their gripping movement at right angles to the rockmgaxis, but the construction would'be more complicated and expensive byreason of the desirability that the jaws should be capable of equal andopposite movements for the urpose of centering the works as regards t eaxis.

What I claim is 1. A support, a swinging frame mounted on the support,fixed and movable jaws carried by the swinging frame, an adjusting meansfor the movable jaw disposed in line with the axis about which the frameis free to swing.

2. A support, a swinging frame mounted on the support, fixed and movablejaws carried by the swinging frame and set below the axis thereof, andadjusting means for the movable jaw disposed in line with the axis aboutwhich the frame is free to swing.

3. A support, a swinging frame journaled at oplposite ends on thesupport, lixed and mova le jaws on the frame disposed between thejournals thereof, and adjusting meansv for the movable jaw in line withthe axis of the swinging frame and passing through a journal thereof andthe bearing of the support receiving such journal.

4. A support, a frame of substantially U form havmgopposed journals atopposite ends mounted in said support, said frame having a fixed jaw atone end, a movable jaw on the frame between the journals thereof, andadjusting means for the movable jaw passing through the journal thereofremote from the fixed jaw and through the bearing ofthe support in whichthe said journal is mounted.

5. A U-shaped frame, having a fixed jaw at one end and a journal at theohnosite end by which to pivotally mount the frame, a movable jawmounted on the'frame between the fixed jaw and journal, and adjustingmeans. for the movable jaw passing through the said journal 0f theframe.

6. A support having open spaced bearings, a U-shaped frame havingjournals at opposite 4ends to swingingly mount the frame in said openbearings, said frame having a fixed jaw at one end, a movable jaw on theframe, and adjusting means for vthe movable jaw extending through thejournal of the frame remote from the fixed jaw thereof.

In testimony whereof I have hereunto signed my name.

HAROLD SOUTHON.

